Illustration shows a microscopic view of a zeolite crystalline


While activated carbon adsorbs the vast majority of odors generated by the human body, zeolite is another component that can adsorb some compounds better than activated carbon. These odor compounds are typically very small molecules and represent a small part of the human odor signature. Although when used as a primary absorbent, zeolite has limited benefits, when combined with activated carbon, the combination extends the range of Scent-Lok Technology like never before.

How does zeolite work?

Zeolite acts as a “molecular sieve” which can be adjusted to allow small molecules to be adsorbed while excluding larger molecules and passing smaller ones, as zeolites have very specific, narrow pore size ranges. Blending zeolites with carbon can provide the new range of adsorption depicted in the graph.

what the experts say...

“Zeolite should not be expected to provide any adsorption area for molecules larger than its pores, nor for molecules for which it does not have affinity. However, the broad range of pore size in carbon makes this criteria less strict than it is for Zeolite.”

- U.S. Environmental Protection Agency

Zeolite covers a small range of odors such as ammonia better than carbon alone.